|Light Source||Sodium lamp|
|Tube Length||50, 100, 200mm|
Disc Polarimeter WXG-4
WXG-4 polarimeter is installed with a 589nm sodium lamp. Switch on the power, the polarized
light radiates to the polarizer filter. The user is able to observe the distinct visual fields through
eyepiece. Place the test tube into the measuring chamber and rotate the vernier knob until the
visual fields appear the equal brightness.